Ohm's Law Calculator
Use Ohm's Law to solve for voltage (V), current (I), or resistance (R). Enter any two values and the calculator finds the third. Also shows power dissipation (P = VI).
Inputs
Leave at 0 when solving for voltage
Leave at 0 when solving for current
Leave at 0 when solving for resistance
Results
Voltage
12.00 V
Current
2.0000 A
Power
24.00 W
Ohm's Law Results
| Parameter | Value |
|---|---|
| Voltage (V) | 12.0000 V |
| Current (I) | 2.0000 A |
| Current (mA) | 2000.00 mA |
| Resistance (R) | 6.0000 Ω |
| Power (P) | 24.0000 W |
| Power (mW) | 24000.00 mW |
| Formula Used | V = I × R |